/Engine/Source/Runtime/GeometryCore/Public/Intersection/IntersectionUtil.h
Intersect ray with circle and return intersection info (# hits, ray parameters)
true if ray intersects circle
namespace IntersectionUtil { template<typename RealType> bool IntersectionUtil::RayCircleIntersection ( const [TVector](API\Runtime\Core\Math\TVector)< RealType > & RayOrigin, const [TVector](API\Runtime\Core\Math\TVector)< RealType > & RayDirection, const [TVector](API\Runtime\Core\Math\TVector)< RealType > & CircleCenter, RealType CircleRadius, const [TVector](API\Runtime\Core\Math\TVector)< RealType > & CircleNormal, [FLinearIntersection](API\Runtime\GeometryCore\Intersection\FLinearIntersection) & Result ) }